Datenblatt-Suchmaschine für elektronische Bauteile |
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LA4728 Datenblatt(PDF) 1 Page - Sanyo Semicon Device |
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LA4728 Datenblatt(HTML) 1 Page - Sanyo Semicon Device |
1 / 3 page LA4728 Ordering number : EN *5716 2-Channel BTL Power Amplifier (35 W+35 W) with Standby Switch for Car Stereos Preliminary Monolithic Linear IC SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN Overview The LA4728 is a BTL two-channel power IC for car audios developed in pursuit of excellent sound quality. Low-region frequency characteristics have been improved through the use of a new NF capacitorless circuit, and crosstalk which causes “muddy” sound has been reduced by improving both circuit and pattern layout. As a result the LA4728 provides powerful bass and clear treble. Features ⋅ High power: supports total output of 35 W+35 W. [EIAJ power] (VCC=14.4 V, THD=30 %, RL=4 Ω) ⋅ Less pop noise. ⋅ Designed for excellent sound quality. (fL<10 Hz, fH=130 kHz) ⋅ Any rise time settable by an external capacitor. ⋅ Standby switch circuit on chip. (microcontroller support- ed) ⋅ Various protectors on chip. (output-to-ground short/ output-to-VCC short/ load short/ overvoltage/ thermal shutdown circuit) ⋅ The LA4728 is pin-compatible with the LA4725. Specifications Maximum Ratings at Ta = 25 ˚C Recommended Conditions at Ta = 25 ˚C Package Dimensions unit: mm 3113A-SIP14HZ [LA4728] SANYO: SIP14HZ Parameter Symbol Conditions Ratings Unit Maximum supply voltage VCC max 18 V Surge supply voltage VCC surge f ≤ 0.2 s, single giant pulse 50 V Maximum output current IO peak Per channel 3.5 A Allowable power disspation Pd max With arbitrarily large heat sink 32 W Operating temperature Topr –35 to +85 ˚C Storage temperature Tstg –40 to +150 ˚C Parameter Symbol Conditions Ratings Unit Recommended supply voltage VCC 13.2 V Operating voltage range VCC op Range where Pd max is not exceeded 9 to 16 V Recommended load resistance RL op 4 Ω 32497RM(KOTO) No.5716-1/3 |
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